-51.55% is the change from 999 to 484
Calculation steps:
[( 484 - 999 ) ÷ 999] x 100 = -51.55%
Formula
Percentage change = [(484 - 999) / 999] x 100
Subtract the new number by the original number
484 - 999 = -515
-515 ÷ 999 = -0.5155155155155156
-0.5155155155155156 x 100 = -51.55%